What is LM80 and how is it tested?

Christen Hartman

Answer
LM80 is a third party testing to report lumen maintenance.

LM80 specifies testing up to 60,000 hours. TM21 recommends a method for projecting the results of the LM80 tests beyond 60,000 hours to arrive at a reasonable estimate of LED “life.”

What is Lumen Maintenance?

  • LED emitters typically do not burn out or “die” in the practical life of any LED product; they fade in intensity. So the concept of “lamp life” has been replaced by the concept of “lumen maintenance.”
  • Lumen maintenance is generally a prediction of the number of hours an emitter will operate before it fades below a usable level of intensity. Currently, most lumen maintenance reporting assumes that dropping below 70% intensity is the end of life for an LED emitter.
  • LED lumen maintenance is typically reported as a total number of hours with a “B” number and an “L” number. ETC rates its LED fixtures with a lumen maintenance value of 50,000 hours (B50, L70). This is a very common rating in the LED fixture industry. This indicates that after 50,000 hours of use, 50% of the LEDs tested (B50) will fall below 70% of their initial lumen output (L70).
  • These metrics indicate the probability that a single LED will fail lumen maintenance under precise test conditions, not necessarily a system of LEDs, or the drivers and power supplies used in a luminaire.

What about voltage drop with LED fixtures?

admin

Answer
Integral Lighting fixtures equipped with our direct drive LED operate with voltage from 7.5vAC to 12.5vAC. The low energy consumption of 1.2 watts to 3.6 watts virtually eliminates the voltage drop associated with standard incandescent landscape lighting installations.

My transformer turns on for a period of time, turns off, then comes back on … why?

admin

Answer
Most low voltage transformers are equipped with thermal protection. If your power unit is undersized (overloaded) it is probably overheating and causing the thermal protection to shut down the unit. Consider using a larger transformer or splitting the load to an additional unit.  Refer to the FAQ on sizing a transformer.

Support And Service After Your Purchase

admin

Answer
Our experienced support staff has assisted 1000’s of homeowners and installers with issues in the field.  Every job and installation is unique, rest assured that we can assist you with everything from design to troubleshooting, whenever you need it. Our normal business hours are 8am to 4pm EST

You may also contact our service at support@integral-lighting.com

Call 800.861.1364

How long should my bulbs last?

admin

Answer
If your system has been installed with proper attention to voltage, the rated life for the current bulb (Ushio bulb #1001430) is approximately 10,000 hours. This is based on the manufacturers testing and is rated when 50% of the said bulbs fail.

Many factors may have an effect on a bulb lasting the rated life. Voltage is the number one detail to pay attention to upon installation. We can help you troubleshoot your system if you believe that you are not achieving a satisfactory bulb life.

How many lights do I need for my installation?

admin

Answer
Design and layout is up to you.

We recommend a spacing of 36″ to 72″ in a typical wall installation. If your design includes steps, start by lighting the steps adequately, then place fixtures in the surrounding walls to expand the feel of night lighting as you desire. If you are still uncertain, please contact us at 800.861.1364 for assistance.

Do I need to notch the concrete block to install my fixture?

admin

Answer
Generally speaking, no. The idea behind the fixture is to remove the sawing and cutting that was historically required to install a light into a wall. You may find it necessary to cut for channeling the wire where a gap does not accommodate your layout.

Are Integral Lighting fixtures dimmable?

admin

Answer
Absolutely … both Xenon and LED Integral Lights are fully dimmable. Read the Lutron Dimmer White Paper for more information regarding the use of dimmers and low voltage lighting systems.

Click To Read »

Still have questions? Call 800.861.1364 to discuss specifics.

Is Integral Lighting compatible with my existing low voltage lighting?

admin

Answer
Yes. Your typical landscape lighting installation operates on 12 volts and is powered by a magnetic transformer. Integral Lighting is compatible with existing 12 volt installations. Be sure to consult your transformer rating to be sure that you have enough capacity to drive your Integral Lighting. If not, consider the addition of another transformer or increase your current power supply.

Additionally, all of our energy efficient LED products were designed specifically for use with magnetic transformers and require no additional drivers or electronic components.

How long are your fixture leads?

admin

Answer
We supply a 72″ wire lead which is attached directly to either our socket or LED package. The wire is 18/2 and should be connected to your feed wire as close as practical using watertight connectors.